Sarah reviews a TIFF document sent by Jim Miller and uses CoSign Digital Signatures to sign the document. She selects Print from the File menu, which generates a PDF using the CoSign Printer. This opens CoSign, allowing Sarah to create and sign a new signature field on the document. After inputting her password, her digital signature is applied and the signed PDF is saved. When opened in Adobe Reader, the signature is validated, proving Sarah's identity and that the document has not been altered since signing.